#include<stdio.h>
#define MONTHS 12

int main(void)
{
    int days[MONTHS] = {31,28,31,30,31,30,31,31,30,31,30,31};
    int index;
    
    for(index = 0; index < MONTHS; index++)
        printf("Month %2d has %2d days.\n",index + 1, days[index]);
	int const * a;
	a = days;
	printf("a地址 %p\n",a);
	printf("a的值 %d\n",*a);
	const int * b;
	b = &days[1];
	//b = 1;
	printf("b地址 %p\n",b);
	printf("b的值 %d\n",*b);
    return 0;
}
